Fuel.



UNITE "sTAT s PATENT OFFICE...

MENTHEIM SALOMON, OFTOLEDQ, OHIO, Ass IeNoR To EDWARD A.

. DEWEY, on TOLEDO, OHIO;

FUEL.

To all whom it may concern:

Be it known that I, MENTHEIM SALOMON, a

citizen ofthe German Empire, residing at Toledo, in the county of Lucas and State of ()hio,

have invented new and useful Improvements 1 for domestic or other purposes. Fuel of this general kind has been produced in a variety of ways and from widely-different ingredients; but, so far as Iam aware, the product has not been entirely satisfactory. It is essential that the cost of labor and material should be low, that the fuel should not melt and clog the fire nor disintegrate long before it isv consumed, that the lumps should not be too soft nor too brittle to resist rough handling, that the fuel should not deteriorate by lapse of timeor the action of moisture, and that its odor in burn ing should not be offensive. It is desirable that it should'not'involve certain minor evils and that it should possess certain positive characteristics tending to make it more satisfactory in use. I

My fuel consists of-compact blocks or lumps made up of comminuted coal, pine-pitch, glue, and common brown sugar, and it is produced by boiling the glue with 'suflieient water to make a thin liquid, boiling the pitch separately, boiling both together until they are intimately mixed, adding the sugar and boiling the whole mass until itis homogeneous,

1 thoroughly mixing this mass with comminuted coal, and subjecting the compound to heavy Specification of Letters Patent. Application filed Tilly 22, 1905. Serial No. 270,863.

Patented Dec. 5, 1905. 7

pressure in suitable molds to form it into lumps or blocks-of either rounded or angular form and of a size suitable for the proposed use to be made of it.

In practice I have found the following proportions quite satisfactory: coal, ,two thousand pounds; pine-pitch, thirty-five pounds; glue, five pounds; sugar, two pounds.

The pitch serves as a binder, and it is greatly aided by the glue, which although small. in quantity is very evenly distributed by means of the water. The sugar may also serve to some slight degree as a binder; but, so far as I am able to determine, it does not do more in this respect than to retard disintegration of the lumps when burning. Its principal office, perhaps, in this compound is to prevent unpleasant odors in the burning of the fuel.

. What I claim is 1. The process of forming fuel-lumps which consists in dissolving glue in boiling water, adding boiling pitch, adding sugar and boiling the whole, intimately mixing the liquid 5 so formed with comminuted coal, and subjecting the mass to high pressure.

2. Fuellumps consisting of comminuted coal, pine-pitch, glue, and sugar.

r 3. -A fuel in whichpine-pitch and glue are 7 combined with sugar; whereby objectionable odor in burning is prevented.

4:. Highly-compressed fuel-blocks consisting of comminuted coal, pine-pitch, glue, and common sugar, in substantially the proportions of: coal, two thousand pounds, pitch, thirty-five pounds, glue, five pounds, and sugar, two pounds.

' In testimony whereof I affiX my signature in presence of two subscribing witnesses.

. MENTHEIM SALOMON.

Witnesses: T

JOHN Roo'r, MICHAEL J. GAVIN. 

